E=matrix([[1,0,0],[-2,1,0],[0,1,1]])
F=matrix([[1,0,0],[0,1,0],[1,0,1]])
Q=E*F
print Q
W=F*E
print W
bool(Q==W)

Strang-1.4-4 (last edited 2010-12-18 07:29:18 by sai kumar)